kernel security and bug fix update

4.18.0-513.9.19.OL8 - media: dvb-core: Fix use-after-free due to race at dvbregisterdevice Mauro Carvalho Chehab CVE-2022-45884 - cifs: Fix UAF in cifsdemultiplexthread Zhang Xiaoxu CVE-2023-1192 - nvmet-tcp: Fix a possible UAF in queue intialization setup Sagi Grimberg CVE-2023-5178 - net: tun:...

kernel: use-after-free due to race condition occurring in dvb_ca_en50221.c

A race condition flaw leading to a use-after-free issue was found in the Linux kernel media subsystem in the DVB CA EN50221 interface of the DVB core device driver. It could occur in the dvbcaen50221release function if there is a disconnect after an open, because of the lack of a waitevent. A loc...

kernel: use-after-free due to race condition occurring in dvb_net.c

A race condition flaw leading to a use-after-free issue was found in the Linux kernel media subsystem in the dvbnet component of the DVB core device driver. It could occur between the time the device is disconnected .disconnect function and the time the device node is opened dvbdeviceopen functio...

kernel: use-after-free due to race condition occurring in dvb_ca_en50221.c

A race condition flaw leading to a use-after-free issue was found in the Linux kernel media subsystem in the DVB CA EN50221 interface of the DVB core device driver. It could occur in the dvbcaen50221release function if there is a disconnect after an open, because of the lack of a waitevent. A loc...

kernel: use-after-free due to race condition occurring in dvb_net.c

A race condition flaw leading to a use-after-free issue was found in the Linux kernel media subsystem in the dvbnet component of the DVB core device driver. It could occur between the time the device is disconnected .disconnect function and the time the device node is opened dvbdeviceopen functio...

kernel: use-after-free due to race condition occurring in dvb_register_device()

A race condition flaw leading to a use-after-free issue was found in the Linux kernel media subsystem in the DVB core device driver. It could occur in the dvbregisterdevice function due to the fileoperations structure fops being dynamically allocated and later kfreed. A local user could use this...

RHEL 8 : kernel-rt (RHSA-2023:7548)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7548 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

kernel: media: dvbdev: adopts refcnt to avoid UAF

In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvbunregisterdevice is known that prone to use-after-free. That is, the cleanup from dvbunregisterdevice releases the dvbdevice even if there are pointers stored in file-privatedata still...

kernel: use-after-free due to race condition occurring in dvb_net.c

A race condition flaw leading to a use-after-free issue was found in the Linux kernel media subsystem in the dvbnet component of the DVB core device driver. It could occur between the time the device is disconnected .disconnect function and the time the device node is opened dvbdeviceopen functio...

OESA-2023-1845 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvbregisterdevice dynamically allocating fops.CVE-2022-45884 Rejected reason: DO NOT USE THIS CANDIDATE...

OESA-2023-1843 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvbregisterdevice dynamically allocating fops.CVE-2022-45884 Rejected reason: DO NOT USE THIS CANDIDATE...

OESA-2023-1842 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvbregisterdevice dynamically allocating fops.CVE-2022-45884 Rejected reason: DO NOT USE THIS CANDIDATE...

OESA-2023-1844 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvbdev.c has a use-after-free, related to dvbregisterdevice dynamically allocating fops.CVE-2022-45884 Rejected reason: DO NOT USE THIS CANDIDATE...

kernel: memory leak in ttusb_dec_exit_dvb() in media/usb/ttusb-dec/ttusb_dec.c

A memory leak issue was found in the Linux kernel media subsystem in the TTUSB DEC driver. It could occur in the ttusbdecexitdvb function because of the lack of a dvbfrontenddetach call. A local user could trigger this flaw by repeatedly plugging and unplugging the device, potentially causing a...

kernel: media: dvb-usb: fix memory leak in dvb_usb_adapter_init()

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: fix memory leak in dvbusbadapterinit Syzbot reports a memory leak in "dvbusbadapterinit". The leak is due to not accounting for and freeing current iteration's adapter-priv in case of an error. Currently if an err...

kernel: memory leak in ttusb_dec_exit_dvb() in media/usb/ttusb-dec/ttusb_dec.c

A memory leak issue was found in the Linux kernel media subsystem in the TTUSB DEC driver. It could occur in the ttusbdecexitdvb function because of the lack of a dvbfrontenddetach call. A local user could trigger this flaw by repeatedly plugging and unplugging the device, potentially causing a...

kernel: media: dvb-usb: fix memory leak in dvb_usb_adapter_init()

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: fix memory leak in dvbusbadapterinit Syzbot reports a memory leak in "dvbusbadapterinit". The leak is due to not accounting for and freeing current iteration's adapter-priv in case of an error. Currently if an err...

kernel: media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: az6027: fix null-ptr-deref in az6027i2cxfer Wei Chen reports a kernel bug as blew: general protection fault, probably for non-canonical address KASAN: null-ptr-deref in range 0x0000000000000010-0x0000000000000017...

OESA-2023-1783 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An issue was discovered in the Linux kernel through 6.0.6. drivers/char/pcmcia/cm4040cs.c has a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling open, aka a race...

USN-6466-1 linux-nvidia-6.2 vulnerabilities

Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel contained a race condition during device removal, leading to a use-after- free vulnerability. A physically proximate attacker could use this to cause a denial of service system crash or possibly execute arbitrary code...